List of top Chemistry Questions on Occurrence Of Metals

The chief impurity present in red bauxite is:

In the electrolytic method of obtaining aluminium from purified bauxite, cryolite is added to the charge in order to :

Bessemer converter is used for the preparation of:

The ore camalite is represented by structure:

The composition of carnallite is

Malachite is a mineral of

Thermite is a mixture of

Sphalerite is concentrated by

Metallic lustre is explained by

The role of calcination in metallurgical operation is

The relative abundance of two isotopes of atomic weight 85 and 87 is 75% and 25% respectively. The average atomic weight of element is

The reducing agent used in the thermite process is

The purpose of smelting an ore is

The most abundant element in the earth's crust(by weight) is

The metal that occurs in the native state as well as in the combined form is

The chemical composition of cryolite mineral is

Ordinary glass is :

Of the following, the most stable hydride is

Mineral of aluminium that does not contain oxygen is

Metals are good conductors of heat because

Metallic lustre is due to